.expertise-card {
  position: relative;
  display: block;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  color: var(--c-white);
}

.expertise-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Dégradé sombre sur le tiers inférieur pour la lisibilité du titre. */
.expertise-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 31, 61, 0.9) 0%,
    rgba(10, 31, 61, 0.25) 45%,
    transparent 65%
  );
}

.expertise-card__title {
  position: absolute;
  left: 16px;
  bottom: 16px;
  right: 56px;
  z-index: 1;
  font-weight: 700;
  font-size: 1rem;
}

.expertise-card__arrow {
  position: absolute;
  right: 16px;
  bottom: 16px;
  z-index: 1;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--c-blue-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease;
}

.expertise-card:hover .expertise-card__arrow,
.expertise-card:focus-visible .expertise-card__arrow {
  background: var(--c-blue-700);
}